xref: /openbmc/qemu/include/hw/rtc/pl031.h (revision 4305d482)
1 /*
2  * ARM AMBA PrimeCell PL031 RTC
3  *
4  * Copyright (c) 2007 CodeSourcery
5  *
6  * This file is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  * Contributions after 2012-01-13 are licensed under the terms of the
11  * GNU GPL, version 2 or (at your option) any later version.
12  */
13 
14 #ifndef HW_RTC_PL031_H
15 #define HW_RTC_PL031_H
16 
17 #include "hw/sysbus.h"
18 #include "qemu/timer.h"
19 
20 #define TYPE_PL031 "pl031"
21 #define PL031(obj) OBJECT_CHECK(PL031State, (obj), TYPE_PL031)
22 
23 typedef struct PL031State {
24     SysBusDevice parent_obj;
25 
26     MemoryRegion iomem;
27     QEMUTimer *timer;
28     qemu_irq irq;
29 
30     /*
31      * Needed to preserve the tick_count across migration, even if the
32      * absolute value of the rtc_clock is different on the source and
33      * destination.
34      */
35     uint32_t tick_offset_vmstate;
36     uint32_t tick_offset;
37     bool tick_offset_migrated;
38     bool migrate_tick_offset;
39 
40     uint32_t mr;
41     uint32_t lr;
42     uint32_t cr;
43     uint32_t im;
44     uint32_t is;
45 } PL031State;
46 
47 #endif
48